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Re: disable cpuspeed while X session active and screensaver not running
- From: "Jon Nettleton" <jon nettleton gmail com>
- To: "Development discussions related to Fedora" <fedora-devel-list redhat com>
- Subject: Re: disable cpuspeed while X session active and screensaver not running
- Date: Thu, 11 Oct 2007 14:11:38 -0400
On 10/11/07, Denis Leroy <denis poolshark org> wrote:
> Florin Andrei wrote:
> > Florin Andrei wrote:
> >>
> >> But come to think of it, I only want to disable cpuspeed
> >
> > Well, it's not even required to disable cpuspeed. It's enough if
> > cpuspeed can be told somehow "a user is on the GUI now, and the system
> > is not running on batteries, don't throttle the CPU."
> >
> > When the screensaver kicks in, or when the laptop switches to batteries,
> > or when there's no active X session, cpuspeed should be told to resume
> > normal throttling.
>
> On that subject, does anyone knows how to tell the Frequency Monitor
> applet to keep the cpu in lower frequency all the time (i.e. 'killall
> -USR2 cpuspeed', which is what you want typically when running on
> batteries) ?
>
If you don't run cpuspeed and use the in kernel governors you can
choose the different governor you want to use to control your speed,
or a static speed from the applet. This is the behavior by default on
newer cpu's, but for some reason the cpuspeed damon is still used on
older processors. I have some scripts that load these modules for
older cpu's if anyone is interested.
This whole process is being re-architected right now. This should all
change, hopefully in time for F9.
Jon
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